The middle groove design of the jack stand pad is a good protector, when the car is lifted by the jack, the jack stand pad can avoid bending of the frame rails and clamp welds, and can also protect the painted or coated suspension components to prevent the chassis rails from being scratched, bent or broken. It also provides more cushioning and crush resistance to protect painted or coated chassis components Made of rubber material, it plays a good anti-slip effect, which can provide greater cushioning and compression. measures about 2.48 x 1.97 x 1.73 inches/ 63 x 50 x 44 mm Colour:Black Material:rubber Size:2.48x1.97x1.73inches/63x50x44 mm Package Contents: 4 x Jack stand pads Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.